Add make help, Enter key validation, Android/macOS/web/ChromeOS exports (0.9.0)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tests/exercises/test_enter_key_validation.gd

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+extends GutTest
+## La touche Entree valide une saisie comme le bouton « Valider ».
+
+
+func test_enter_in_the_correction_field_submits_the_answer() -> void:
+    var scene: Control = load("res://scenes/exercises/sentence_correction.tscn").instantiate()
+    add_child_autofree(scene)
+    await wait_process_frames(1)
+    var exercise: Dictionary = DataLoader.read_json(
+        "res://data/exercises/ce1/ce1_accord_adjectif_correction_01.json"
+    )
+    scene.load_exercise(exercise)
+    await wait_process_frames(1)
+
+    (scene.get_node("%TokensBox").get_child(1) as Button).toggled.emit(true)
+    await wait_process_frames(1)
+    var edit: LineEdit = scene.get_node("%CorrectionsBox").get_child(0)
+    edit.text = "petits"
+
+    watch_signals(scene)
+    edit.text_submitted.emit(edit.text)
+    assert_signal_emitted_with_parameters(scene, "answer_submitted", [[1], {1: "petits"}])
+
+
+func test_enter_in_the_dictation_field_submits_the_text() -> void:
+    var scene: Control = load("res://scenes/exercises/dictation.tscn").instantiate()
+    add_child_autofree(scene)
+    await wait_process_frames(1)
+    var edit: LineEdit = scene.get_node("%TextEdit")
+    edit.text = "La fleur est belle."
+
+    watch_signals(scene)
+    edit.text_submitted.emit(edit.text)
+    assert_signal_emitted_with_parameters(scene, "answer_submitted", ["La fleur est belle."])

tests/exercises/test_enter_key_validation.gd.uid

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+uid://bahf2o3ldfkgv